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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RT9603CS датащи(PDF) 1 Page - Richtek Technology Corporation |
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RT9603CS датащи(HTML) 1 Page - Richtek Technology Corporation |
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1 / 10 page  RT9603 Preliminary 1 DS9603-00 November 2003 www.richtek.com Features l Drives Two N-Channel MOSFETs l Adaptive Shoot-Through Protection l Supports High Switching Frequency - Fast Output Rise Time - Propagation Delay 40ns l Tri-State Input for Bridge Shutdown l Supply Over-Voltage Protection above Maximum Voltage Rating l Supply Under-Voltage Protection l Upper MOSFET Direct Shorted Protection l Small SOP-8 Package Applications l Core Voltage Supplies for Intel Pentium® 4, AMD® Athlon TM Microprocessors l High Frequency Low Profile DC-DC Converters l High Current Low Voltage DC-DC Converters l IA Equipments Synchronous-Rectified Buck MOSFET Drivers General Description The RT9603 is a high frequency, dual MOSFET drivers specifically designed to drive two power N-Channel MOSFETs in a synchronous-rectified buck converter topology. The device combined with the RT924x series of multi-phase PWM controllers and MOSFETs form a complete core voltage regulator solution for advanced microprocessors. The output drivers in the RT9603 can efficiently switch power MOSFETs at frequencies up to 500kHz. It shall be taken into account the thermal consideration when the switching frequency abov e 500kHz. Each driver is capable of driving a 3nF load in 30/40ns rise/fall time with fast propagation delay from input transition to the gate of the power MOSFET. The dev ice implements boot- strapping on the upper gate with only an external capacitor and a diode required. This reduces implementation complexity and allows the use of higher performance, cost effective N-Channel MOSFETs. Both drivers incorporate adaptive shoot-through protect- ion to prevent upper and lower MOSFETs from conduct- ing simultaneously and shorting the input supply. An unique feature of the RT9603 driver is the addition of over-voltage protection in the event of upper MOSFET direct shorted before power-on. The RT9603 detects the fault condition during initial start-up, the internal power- on OVP sense circuitry will rapidly drive the output lower MOSFET on before the multi-phase PWM controller takes control. As a result, the input supply will latch into the shutdown state, thereby prevent the processor from damaged. Pin Configurations (TOP VIEW) SOP-8 2 3 4 5 8 7 6 BST VCC NC IN DRVH DRVL PGND SW RT9603 Package Type S : SOP-8 Operating Temperature Range C : Commercial Standard Ordering Information |
Аналогичный номер детали - RT9603CS |
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Аналогичное описание - RT9603CS |
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